It mounts directly onto a contactor via the fastening method — no separate base needed — saving rail space and wiring.
Rated surge voltage 6 kV gives the relay enough insulation coordination for 400 V line-to-line systems with upstream surge protection. Shock resistance of 8g / 10 ms means it holds calibration under moderate vibration — fine for floor-mounted MCCs, less so for direct engine mounting. The IP20 front protection keeps fingers and tools out but does not seal against dust or moisture; panel builders should place it inside an IP54 or higher enclosure. That covers most DIN-rail cabinet layouts without derating. Ambient operating range –20 to +70 °C with 100 % relative humidity (non-condensing) suits both heated indoor panels and unheated sheds. Screw terminals on both main and auxiliary circuits accept solid or stranded copper: main contacts up to 35 mm² (1x) or 25 mm² (2x), auxiliary contacts 0.5–2.5 mm². The AWG equivalents run 18–3 for mains and 20–14 for aux — covers typical motor leads and control wiring without adapters.